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Lymantria dispar  (Gypsy moth)

 

Description

Adult females are white with yellow hairs on the abdomen and have black wavybands across the forewings. Adult males are samller than females and are grayish brown with black wavy bands across the forewings. Larvae are very hairy and about 60 mm long when full grown. They have distictive yellow markings on the head and six pairs of double red spots on the back. The eggs about 1 mm in diameter, are oviposited in hair-covered masses of 100 to 1000 on tree trunks and limbs. Pupae are reddish brown and lightly covered with red hairs.

Biology and Damage

The egss overwinter, and hatching begins in early May. Developing larvae devour leaves of their hosts for about 40 days and become full-grown by mid-July. Larvae then spin loose, silken cocoons, ans adults emerge 10 to 14 days later. The adults mate, and the females oviposit on host trees during their 6 to 10 day existence. It produces only one generation per year. More than 500 species are attacked by this pest, causing widespread defoliations often severe enough to kill trees.

This pest sometimes occur on hazelnut trees and defoliate the leaves in Turkey. Females lay nearly 400 eggs when they feed on hazelnut.

Common Names

USA: Gypsy moth TR: Kirtirtili